Currently: 80 °F. Partly sunny. (Weather station: Southern Illinois Airport, USA). See more current weatherMount Vernon Extended Forecast with high and low temperatures
°F
Time
Wind
(mph)
(mph)
Rain/Snow
()
()
Temp
(°F)
(°F)
66
69
72
75
78
81
84
87
90
93
Jun 15 – Jun 21
0.52
Lo:70
Wed, 18
Hi:86
11
0.19
Lo:69
Thu, 19
Hi:85
7
Lo:67
Fri, 20
Hi:89
9
Lo:71
Sat, 21
Hi:91
11
Jun 22 – Jun 28
Lo:75
Sun, 22
Hi:93
9
Lo:74
Mon, 23
Hi:94
7
Lo:74
Tue, 24
Hi:94
4
0.12
Lo:70
Wed, 25
Hi:88
4
Lo:74
Thu, 26
Hi:88
4
0.43
Lo:73
Fri, 27
Hi:88
4
0.02
Lo:72
Sat, 28
Hi:87
6
Jun 29 – Jul 5
Lo:72
Sun, 29
Hi:87
6
0.55
Lo:71
Mon, 30
Hi:86
10
0.04
Lo:72
Tue, 1
Hi:87
12
Lo:71
Wed, 2
Hi:87
10
Wed, Jun 18
86 / 70 °F
Thunderstorms. Cloudy.
Feels Like: 89 °F
Humidity: 68%
Precipitation: Rain: 0.52 Snow: 0
Precipitation Chance: 91%
SSW
Wind: 11 mph
2 Week Extended Forecast in Mount Vernon, Illinois, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Wed Jun 18 |  | 86 / 70 °F | Thunderstorms. Cloudy. | 89 °F | 11 mph | ↑ | 68% | 91% | 0.52" | 5 (Moderate) | 5:31 am | 8:21 pm |
| Thu Jun 19 |  | 85 / 69 °F | Morning clouds. | 87 °F | 7 mph | ↑ | 56% | 65% | 0.19" | 10 (Very high) | 5:32 am | 8:22 pm |
| Fri Jun 20 |  | 89 / 67 °F | Mostly sunny. | 92 °F | 9 mph | ↑ | 53% | 0% | 0.00" | 10 (Very high) | 5:32 am | 8:22 pm |
| Sat Jun 21 |  | 91 / 71 °F | Sunny. | 98 °F | 11 mph | ↑ | 58% | 0% | 0.00" | 10 (Very high) | 5:32 am | 8:22 pm |
| Sun Jun 22 | | 93 / 75 °F | Mostly sunny. | 100 °F | 9 mph | ↑ | 52% | 0% | 0.00" | 10 (Very high) | 5:32 am | 8:22 pm |
| Mon Jun 23 | | 94 / 74 °F | Sunny. | 100 °F | 7 mph | ↑ | 50% | 3% | 0.00" | 10 (Very high) | 5:32 am | 8:22 pm |
| Tue Jun 24 | | 94 / 74 °F | Sunny. | 102 °F | 4 mph | ↑ | 52% | 4% | 0.00" | 10 (Very high) | 5:33 am | 8:23 pm |
| Wed Jun 25 | | 88 / 70 °F | Tstorms early. Morning clouds. | 92 °F | 4 mph | ↑ | 54% | 20% | 0.12" | 10 (Very high) | 5:33 am | 8:23 pm |
| Thu Jun 26 | | 88 / 74 °F | Scattered clouds. | 94 °F | 4 mph | ↑ | 60% | 4% | 0.00" | 7 (High) | 5:33 am | 8:23 pm |
| Fri Jun 27 | | 88 / 73 °F | Tstorms late. Afternoon clouds. | 92 °F | 4 mph | ↑ | 56% | 99% | 0.43" | 3 (Moderate) | 5:34 am | 8:23 pm |
| Sat Jun 28 |  | 87 / 72 °F | Showers early. Overcast. | 92 °F | 6 mph | ↑ | 57% | 45% | 0.02" | 3 (Moderate) | 5:34 am | 8:23 pm |
| Sun Jun 29 |  | 87 / 72 °F | Overcast. | 94 °F | 6 mph | ↑ | 65% | 7% | 0.00" | 3 (Moderate) | 5:35 am | 8:23 pm |
| Mon Jun 30 | | 86 / 71 °F | Thundershowers. Cloudy. | 105 °F | 10 mph | ↑ | 90% | 71% | 0.55" | 5 (Moderate) | 5:35 am | 8:23 pm |
| Tue Jul 1 |  | 87 / 72 °F | Isolated tstorms. Mostly cloudy. | 104 °F | 12 mph | ↑ | 81% | 46% | 0.04" | 5 (Moderate) | 5:35 am | 8:23 pm |
| Wed Jul 2 | | 87 / 71 °F | Breaks of sun late. | 99 °F | 10 mph | ↑ | 73% | 6% | 0.00" | 5 (Moderate) | 5:36 am | 8:22 pm |
| * Updated Wednesday, June 18, 2025 4:23:52 am Mount Vernon time - Weather by CustomWeather, © 2025 | ||||||||||||